This is a Belimo 2-way characterized ball valve with a nickel-plated brass housing and EPDM sealing. The bore diameter of the valve is DN 20 and the port size is Rp 3/4 inch with female threads. With its integrated characterizing disc, it ensures equal percentage flow control, enabling precise and consistent regulation of fluid flow. The maximum pressure differential is 3.5 bar (50.8 psi). The valve can operate between -10 and 120 °C (14 to 248 °F). The Kv value of the valve is 8.6 m3/h, equivalent to a Cv-value of 9.95 gpm. The actuator requires a supply voltage of 24 V AC/DC. The actuator features two-point and three-point control. The actuator opens/closes the valve in 90 seconds. The actuator has an IP54 rating.
The actuator, equipped with overload protection, doesn’t need limit switches and will stop automatically when the end stop is reached. Manual override is possible using a push-button, which disengages the gear train as long as the button is pressed or remains locked. The actuator can be directly mounted on the ball valve using a single screw. The mounting orientation relative to the ball valve can be chosen in 90° increments. The rotation angle can be adjusted with mechanical end stops.
Pros:
- The integrated characterized disc ensures equal percentage flow, ideal for heating circuits
- Manual override
- The actuator is overload protected
- Visual position indicator
Cons:
- The time to open/close of 90 s is slow for some applications
Specifications
Connection size : 3/4 inch
Voltage : 24 V AC,24 V DC
Material : Brass
Seal material : EPDM
Control signal : Three-point (open-close),Two-point (open-close)
Max pressure difference (bar) : 3.5
Closing pressure (bar) : 14
Operating time (s) : 90
Connection type : Inner thread cylindrical BSPT-Rp
Ball valve feature : Manual override
Kv value [m3/h] : 8.6
Max actuator torque (nm) : 20
Max temperature (°C) : 120
Min temperature (°C) : -10
Material quality : Dezincification resistant brass (DZR)
Degree of protection (IP) : IP54
Manual override : Yes
Ground characteristic : Equal percentage
Adjustable operating range : No
Allowable relative humidity (%) : 0 % to 95 %
Ambient temperature (°C) : -30 °C to 50 °C
Max. electric power input (VA) : 5.5
Surface protection : Nickel-plated
Transmission : With cogwheels
Degree of protection (NEMA) : 2
Energy consumption at rest (W) : 0.2
Energy consumption in operation (W) : 2.5
ISO 5211 Direct Mount top flange : No
Voltage : 24 V AC/DC
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